22788337440 has 192 divisors, whose sum is σ = 81714189312. Its totient is φ = 5284224000.

The previous prime is 22788337427. The next prime is 22788337441. The reversal of 22788337440 is 4473388722.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 22788337440.

It is not an unprimeable number, because it can be changed into a prime (22788337441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27615 + ... + 215265.

It is an arithmetic number, because the mean of its divisors is an integer number (425594736).

Almost surely, 2^22788337440 is an apocalyptic number.

22788337440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22788337440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40857094656).

22788337440 is an abundant number, since it is smaller than the sum of its proper divisors (58925851872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22788337440 is a wasteful number, since it uses less digits than its factorization.

22788337440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187703 (or 187695 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 22788337440 in words is "twenty-two billion, seven hundred eighty-eight million, three hundred thirty-seven thousand, four hundred forty".